For me personally I found taking Chem 1 before taking physics to be helpful.
Mind you before I did my DIY post bac in 2018, I hadn’t taken a math course since statistics in 2008 so physics scared the hell out of me when I first started it. But I found that because chemistry 1 is sorta like a math refresher I was able to apply the concepts of stoichometry to unit conversions in physics and it helped me a lot.
If you aren’t in a similar situation to where I was and math is more fresh/easier for you than it shouldn’t matter too much the order.